53407273 has 4 divisors (see below), whose sum is σ = 53436240. Its totient is φ = 53378308.

The previous prime is 53407267. The next prime is 53407307. The reversal of 53407273 is 37270435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53407273 - 2⁹ = 53406761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53407223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11515 + ... + 15472.

It is an arithmetic number, because the mean of its divisors is an integer number (13359060).

Almost surely, 2^53407273 is an apocalyptic number.

It is an amenable number.

53407273 is a deficient number, since it is larger than the sum of its proper divisors (28967).

53407273 is a wasteful number, since it uses less digits than its factorization.

53407273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28966.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 53407273 is about 7308.0279829787. The cubic root of 53407273 is about 376.5882809539.

The spelling of 53407273 in words is "fifty-three million, four hundred seven thousand, two hundred seventy-three".